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Chapter 5: Setting Up and Configuring the Router

System Management Tab - Diagnostic

10/100 8-Port VPN Router

System Management Tab - Diagnostic

The Router has two built-in tools that will help with troubleshooting network problems.

DNS Name Lookup

The Domain Name Service (DNS) allows to look up websites by entering an easily remembered host name, such

as www.RV082.com, instead of numerical TCP/IP addresses to access Internet resources. The Router has a DNS

lookup tool that will return the numerical TCP/IP address of a host name.

Enter the host name in the

Look up the name

field and click the

Go

button. Do not add the prefix “http://”,

otherwise the search will result in an “Address Resolving Failed” message. The Router will then query the DNS

server and display the result below.

Ping

The Ping test bounces a packet of data off an IP Address and back again to the sender. This test shows if the

Router is able to contact the remote host. If users on the network are having problems accessing services on the

Internet, try pinging the DNS server, or another machine at the ISP’s location. If this test is successful, try pinging

other IP Addresses. This will show if the problem lies with the ISP’s connection or the other IP Address.

Enter the IP address being pinged and click the

Go

button. The test will take a few seconds to complete. Once

completed, a message showing the results will be displayed at the bottom of the Web browser window. The

results include Packets transmitted / received / loss and Round Trip Time (Minimum, Maximum, and Average).

NOTE:

The Ping test requires an IP address. The Router’s DNS Name

Lookup tool may be used to find the IP address.

NOTE:

The DNS Server’s IP address must be entered in the Network page of the

Setup Tab (see Figure 5-5) for the DNS Name Lookup feature to function.

Figure 5-28: System Management Tab -

DNS Name Lookup

Figure 5-29: System Management Tab - Ping

ping:

an Internet utility used to determine

whether a particular IP address is online

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Chapter 5: Setting Up and Configuring the Router

System Management Tab - Factory Default

10/100 8-Port VPN Router

System Management Tab - Factory Default

The

Factory Default

button can be used to clear all of your configuration information and restore the Router to its

factory default settings. Only use this feature if you wish to discard all other configuration preferences.

Click the

Return to Factory Default Setting

button if you want to restore the Router to the factory default

settings. After clicking the button, another screen, asking if you are sure you want to restore the settings to

default will appear. Click

OK

to continue. Another screen will then appear to show that the system is rebooting.

System Management Tab - Firmware Upgrade

Firmware Upgrade

Use this function to upgrade the Router’s firmware to the newest version. If you have already downloaded the

firmware into your computer, then click the

Browse

button to look for the file. Then, click the

Firmware

Upgrade Right Now

button.

Firmware Download

Click the

Firmware Download from Linksys Web Site

button to download the Router’s Firmware from the

Linksys Support page. Select the Router from the pull-down menu and choose the firmware from the options.

After downloading the firmware, follow the

Firmware Upgrade

instructions above.

Figure 5-30: System Management Tab - Factory Default

Figure 5-31: Are You Sure

Figure 5-32: System Management Tab -

Firmware Upgrade

download:

to receive a file transmitted over a network

34

Chapter 5: Setting Up and Configuring the Router

System Management Tab - Restart

10/100 8-Port VPN Router

System Management Tab - Restart

When restarting the Router, you should use this Restart tool. Restarting with this button will send out a log file

before the box is reset. Select the

Active Firmware Version

or

Backup Firmware Version

. Click the

Restart

Router

button to restart the Router.

System Management Tab - Setting Backup

From this screen, you can make a backup file of the Router’s Preferences.

Import Configuration File:

You will need to specify where your Preferences file is located. Click the

Browse

button and select a Preferences

file. This should have been previously saved using the Export button. After you select the file, click the

Import

button. This process may take up to a minute.

You will then need to restart the Router in order for the changes to

take effect.

Export Configuration File:

Click the

Export

button and choose where you would like to store your Preferences file. This file will be called

“RV082.exp” by default, but you may rename it if you wish. This process may take up to a minute.

Port Management Tab - Port Setup

From this screen, you can configure the connection status for each port, such as Priority, Speed, Duplex and Auto

Negotiation.

Basic Per Port Config.

The port information and modifications are displayed according to the following columns.

Port ID

: This signifies which port is being configured.

Interface

: This column shows the type of port you are configuring.

Disable

: Checking this box will disable the corresponding port.

Priority

: Select

High

or

Normal

for Port-based QoS (Quality of Service). Port-based QoS is used to maximize

network performance and this setting allows you to prioritize performance on eight LAN ports.

Figure 5-33: System Management Tab - Restart

Figure 5-34: System Management Tab -

Setting Backup

Figure 5-35: Port Management Tab - Port Setup

35

Chapter 5: Setting Up and Configuring the Router

Port Management Tab - Port Status

10/100 8-Port VPN Router

Speed

: This allows you to manually configure the per-port speed as

10Mbps

or

100Mbps

.

Duplex

: This configures the port to half-duplex or full-duplex throughput.

Auto Negotiation

: If enabled, every LAN port will be set as auto negotiated, which will automatically manage

speed and throughput.

VLAN

: For each LAN port, a VLAN (a Virtual LAN, or network within your network) can be established. Up to eight

VLANs can be established.

Click the

Save Settings

button to save the Port settings or click the

Cancel Changes

button to undo your

changes.

Port Management Tab - Port Status

Users can choose the port number from the pull down menu to see the status of the selected port.

The Summary table will show the settings for the selected port, such as Type, Link Status (up or down), Port

Activity (Enabled or Disabled), Priority (High or Normal), Speed Status (10Mbps or 100Mbps), Duplex Status (Half

or Full), Auto negotiation (Enabled or Disabled).

The Statistics table will show the port receive/transmit packet count/packet byte count and Port Packet Error

Count of the selected port. Click the

Refresh

button to refresh the port status.

Figure 5-36: Port Management Tab - Port Status

Half-Duplex:

data transmission that can occur in two

directions over a single line, but only one direction at a time.

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Chapter 5: Setting Up and Configuring the Router

Firewall Tab - General

10/100 8-Port VPN Router

Firewall Tab - General

From the Firewall Tab, you can configure the Router to deny or allow users from accessing the Internet or even

network servers. You can set up different packet filters for different users within your network based on their

network Port number or access from the Internet based on their IP addresses.

Firewall

: The Firewall function is enabled by default. If this function is disabled, SPI, DoS, Block WAN Request

will also be disabled. Remote Management will be enabled and Access Rules and Content Filter will be disabled.

SPI

(Stateful Packet Inspection): The Router's Firewall uses Stateful Packet Inspection to maintain connection

information that passes through the firewall. It will inspect all packets based on the established connection, prior

to passing the packets for processing through a higher protocol layer.

DoS

(Denial of Service): Protect internal networks from Internet attacks, such as SYN Flooding, Smurf, LAND,

Ping of Death, IP Spoofing and reassembly attacks.

Block WAN Request

: This feature is designed to prevent attacks through the Internet. When it is enabled, the

Router will drop both the unaccepted TCP request and ICMP packets from the WAN side. The hacker will not find

the Router by pinging the WAN IP address. If DMZ is enabled, this function will be disabled.

Remote Management

: This Router supports remote management. If you want to manage this Router through the

WAN connection, click

Enable

. Then, specify which port you wish to use for remote management (eg. 80 or

8080).

HTTPS

: Enabling this function allows remote login to the Router using SSL as well as remote access to your

network through the Linksys QuickVPN software will be available.

Multicast Pass Through

: IP Multicasting occurs when a single data transmission is sent to multiple recipients at

the same time. Using this feature, the Router allows IP multicast packets to be forwarded to the appropriate

computers.

MTU

(Maximum Transmission Unit): This feature is enabled by default and should remain enabled. It specifies the

largest packet size permitted for network transmission. The default of MTU size is 1500 bytes.

Restrict WEB features

Select which type of Internet feature -

Java

,

Cookies

,

ActiveX

, or

Access to HTTP Proxy Servers

- you would

like to restrict by click on the box beside them. If you would like to leave trusted sites unblocked, click

Don’t

Block Java/ActiveX/Cookies/Proxy To Trusted Domains

.

Figure 5-37: Firewall Tab - General

multicasting:

sending data to a

group of destinations at once